1/2 cup mayonnaise, regular or low-fat
1/2 cup sour cream, regular or low-fat
1 tablespoon milk, or more as needed
1 tablespoon freshly cracked peppercorns
1 tablespoon freshly grated parmesan cheese
1/2 teaspoon onion powder
1/8 teaspoon of garlic powder
1/8 teaspoon of sea salt, to taste